National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

LAKE MATHEWS (MHEC1)

Lat: 33.81694°NLon: 117.46361°WElev: 1516.0ft.

NA

78°F

26°C

Humidity 59%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 62°F (17°C)
Visibility NA
Heat Index80°F (27°C)
Last update 28 Aug 06:16 AM PDT
Extended Forecast for

4 Miles ESE Corona CA

Extreme Heat Warning August 28, 06:59am until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 28, 06:59am until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 102 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Northwest wind around 5 mph becoming calm after midnight.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 99. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 99 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 67. West wind 5 to 10 mph becoming light and variable after midnight.

    Low: 67 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 95. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 102. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 70. Northwest wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 99. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
Clear, with a low around 67. West wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 95. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 87.
Tuesday Night
A slight chance of showers after 11pm. Mostly cloudy, with a low around 63.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A slight chance of showers. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Corona CA
 33.86°N 117.52°W (Elev. 1181 ft)
Last Update:
1:07 am PDT Aug 28, 2026
Forecast Valid:
6am PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation